Drills are a type of narrow rotating weapon which were sporadically used throughout Robot Wars. The first robot to use them was Torque of the Devil in Series 1, while the most successful was the US shufflebot Drillzilla, which won several side competitions in Robot Wars: Extreme Warriors and finished runner-up in The Second World Championship. House Robot Sir Killalot was also fitted with a drill-like lance on his right arm, which became one of his signature features throughout his appearances.